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10/17/2011 7:20:02 AM EDT
Ive got a CMMG .22 conversion and I was sick of the ugly magazine. So I set out to create a "pmag inspired" magazine that im dubbing the "RF MAG" (Rim Fire). Ive emailed CMMG to see if they are interested in acquiring the design. If not, I may set out to produce it myself, or atleast the shells (which can then use the CMMG spring and follower). The mag also finally allows the use of a pmag ranger plate with your .22 conversion. After all, training is better when everything is the same - including the ranger plates. The final product, when its created, will be black in color.

Anyway, heres a mockup video. Im in the process of getting a prototype made..

http://dl.dropbox.com/u/19367233/Assem1.avi

http://i52.tinypic.com/29din91.jpg
10/17/2011 7:37:04 AM EDT
[#1]
Looks great.  So you sent your design idea to CMMG?  I wonder how CMMG came up with their current design?  


10/17/2011 7:40:31 AM EDT
[#2]
I hope you patented this first before shopping it around and posting it on the interwebz.
10/17/2011 7:55:58 AM EDT
[#3]
CMMG has the Gen ll modular mags now which will be coming out in an option G.I. looking skin eventually. The old style mags, which is what your design is, will no longer be offered.
By the way, Magpul frowns on copying their mag. Might want to keep that in mind.
Dave N
10/17/2011 7:58:08 AM EDT
[#4]
Quoted:
Looks great.  So you sent your design idea to CMMG?  I wonder how CMMG came up with their current design?  




CMMG started the design and patent for the current Gen ll about 1.5 years ago.
Dave n

10/17/2011 8:35:30 AM EDT
[#5]
I may end up just getting a couple made for myself. I don't know if magpul would have any basis for infringement as much of the magazine is different, especially the fact that it is not a one piece design like all of their mags.That being said, im not a legal expert, and if magpul wanted to produce the mag id be more than willing to sell/give/barter them the cad files. Im sure magpul doesnt want to bother with a small fry like me though...haha.
10/17/2011 8:38:45 AM EDT
[#6]
Quoted:
The old style mags, which is what your design is...
Dave N


Yes the internals are based on the old style mag, but their 'new style' mag uses the same internal design except that there is no outer bracing. They simply removed the feed channel and created a removable skin for it. The arc and feed lips appear to be the same as the old design. *disclaimer*: I am basing this on the gen 2 pics as this is all I have to go on..

10/17/2011 8:41:02 AM EDT
[#7]
Quoted:
Looks great.  So you sent your design idea to CMMG?  I wonder how CMMG came up with their current design?  




CMMG definitely had their new style design long before I submitted my drawings.
10/17/2011 8:46:06 AM EDT
[#8]
The Gen 2 followers are a different 1 piece design. The old BHOA follower was a spring loaded 2 piece design.
Now if you are talking about the standard follower, you should be good to go. It was and is a good, reliable design. Just doesn't operate the BHOA.
For what it's worth, I like your design. And if you can pull it off, I believe it would sell. I would be in for a couple.
Dave N
10/17/2011 1:19:09 PM EDT
[#9]
Personally I welcome the idea of improving on an idea.

I have the CMMG mags, and there are more things that I don't like about them than do like. I find them to be excessively heavy, hard to load, wrong color, and pretty plain jane. The good is they are about as durable as you'd could ever want and they feed the rounds flawlessly.

ben
10/17/2011 4:05:58 PM EDT
[#10]
Nice design......but I'll tell you now that it's a long road to a small house. Both CMMG and Blackdog have gone past that design and into feed lips that can be replaced (and/or made of steel).

CMMG's new design kinda sorta looks like a PMAG concept and BlackDog's looks more like a GI design.

That all being said....Black Dog's X form magazine is already out on the market and selling strong. Furthermore....they work, and they work well, especially the steel feed lipped x-form mags.

Kevin at BDM....did a lot to make his X form magazines lighter than his previous magazines....which is a good thing too!

If you have the ability to make the mold and run it yourself....cool, otherwise, look to China to get a price that will make you competative in the market place. Sucky deal....but it is what it is. Kevin makes his own molds and can squirt magazines at will. Not sure how CMMG does it.

The two piece design will end up being replaced with the replaceable feed lip design.....and for about the same cost (atleast with BDM's magazine).
10/17/2011 4:42:11 PM EDT
[#11]
Its always good to see a new take on an old problem. That said, lets take a look back at the reality of it:

Lots of money to get a project like this done. Long lead time, pay money up front to get things made, then go to market.  OH...left out one step: get the samples made and go through a validation process. Then there is the market place. As has been pointed out the two big players, CMMG and BlackDog, have been at this awhile and thrown a lot of money and work at it. Keep that in mind. Also, as has been mentioned, both BD and CMMG have gone to replaceable steel feed lips for durability. .22 is notorious hard on its magazine lips in the .22 AR. Look at the learning curve BD went though on their mags.

Just a reality check, not an attempt to discourage at all. I encourage anyone who has ideas to go follow them and give it a shot. Just stay open minded and be nimble and flexible as things do change rapidly at times.

Best of luck!
10/17/2011 6:41:08 PM EDT
[#12]
Quoted:
Nice design......but I'll tell you now that it's a long road to a small house. Both CMMG and Blackdog have gone past that design and into feed lips that can be replaced (and/or made of steel).

CMMG's new design kinda sorta looks like a PMAG concept and BlackDog's looks more like a GI design.

That all being said....Black Dog's X form magazine is already out on the market and selling strong. Furthermore....they work, and they work well, especially the steel feed lipped x-form mags.

Kevin at BDM....did a lot to make his X form magazines lighter than his previous magazines....which is a good thing too!

If you have the ability to make the mold and run it yourself....cool, otherwise, look to China to get a price that will make you competative in the market place. Sucky deal....but it is what it is. Kevin makes his own molds and can squirt magazines at will. Not sure how CMMG does it.

The two piece design will end up being replaced with the replaceable feed lip design.....and for about the same cost (atleast with BDM's magazine).



The idea came as my own solution to my own problem. I mainly designed them for my own use, as I will be definitely be making a few sets for myself. The nice thing is that I have some CNC equipment so I may whip up some molds and do a few runs. The idea was definitely not intended for me to make a bundle of cash on. In fact, id be content with making myself a half dozen sets and that would be that, That being said, I know there are a lot of guys that are unhappy with the cosmetics of all the current magazines. None of them look very close to a regular 223 mag. In fact, in my opinion they are all very "air soft" looking.

The second nice thing, is because I have zero invested in this so far, I can quite easily change the design to incorporate replaceable feed lips. I personally haven't had any issues with the durability of my current cmmg magazine feed lips. I am probably not as heavy of a user as some, but like I said, really not much for me to change in the design.
10/18/2011 5:40:07 PM EDT
[#13]
I am in for 10
10/18/2011 5:59:21 PM EDT
[#14]
Quoted:
Quoted:
Nice design......but I'll tell you now that it's a long road to a small house. Both CMMG and Blackdog have gone past that design and into feed lips that can be replaced (and/or made of steel).

CMMG's new design kinda sorta looks like a PMAG concept and BlackDog's looks more like a GI design.

That all being said....Black Dog's X form magazine is already out on the market and selling strong. Furthermore....they work, and they work well, especially the steel feed lipped x-form mags.

Kevin at BDM....did a lot to make his X form magazines lighter than his previous magazines....which is a good thing too!

If you have the ability to make the mold and run it yourself....cool, otherwise, look to China to get a price that will make you competative in the market place. Sucky deal....but it is what it is. Kevin makes his own molds and can squirt magazines at will. Not sure how CMMG does it.

The two piece design will end up being replaced with the replaceable feed lip design.....and for about the same cost (atleast with BDM's magazine).



The idea came as my own solution to my own problem. I mainly designed them for my own use, as I will be definitely be making a few sets for myself. The nice thing is that I have some CNC equipment so I may whip up some molds and do a few runs. The idea was definitely not intended for me to make a bundle of cash on. In fact, id be content with making myself a half dozen sets and that would be that, That being said, I know there are a lot of guys that are unhappy with the cosmetics of all the current magazines. None of them look very close to a regular 223 mag. In fact, in my opinion they are all very "air soft" looking.

The second nice thing, is because I have zero invested in this so far, I can quite easily change the design to incorporate replaceable feed lips. I personally haven't had any issues with the durability of my current cmmg magazine feed lips. I am probably not as heavy of a user as some, but like I said, really not much for me to change in the design. Somehow lightening your magazines and then adding steel to them seems strange. Again though, I am the newbie here with a pretty cad drawing, so Im sure the reasons behind it are justified.


The problem with the feed lips comes when you run the stronger spring for the BHOA. CMMG will be coming out with a solid, G.I. skin for the Gen ll's in the future but who knows when. We spoke about it several months ago.
Dave N
10/19/2011 4:37:11 AM EDT
[#15]
I like them, and would be interested in a few if all i have to do is drop my spring follower and base plate into them .
10/19/2011 2:47:16 PM EDT
[#16]
Ive updated the design to potentially accommodate replaceable feed lips. I wont be posting any more CAD pics in this thread as ive been chatting with a mag manufacturer that might have interest. I wont post any more details related to that for their sake. If something comes of this, I will post updates if they give me the A-OK. Until then, if you would have interest in this style of mag (including replaceable lips), be sure to post up. The more support, the easier the business decisions become.
10/19/2011 6:53:24 PM EDT
[#17]
I could care less about the feed lips aslong as they are on price with BDM mags from 44mag.com
10/19/2011 9:21:18 PM EDT
[#18]
Quoted:
Ive updated the design to potentially accommodate replaceable feed lips. I wont be posting any more CAD pics in this thread as ive been chatting with a mag manufacturer that might have interest. I wont post any more details related to that for their sake. If something comes of this, I will post updates if they give me the A-OK. Until then, if you would have interest in this style of mag (including replaceable lips), be sure to post up. The more support, the easier the business decisions become.


Good idea.....

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